Death of livestock and poultry is a product must be met in livestock production, the processing methods of affected by mortality and livestock and poultry breeding mode.
1. The range
Until the 1970 s, China's aquaculture basically in a state of rural range, then the small amount of farming, mortality is low, even in death, quantity is not big, through deep and other simple way to dispose of them. The current animal husbandry has developed into a new stage of animals breeding stock, market volume has increased into more than ten times as much. Pigs, for example, in 2012 at the end of the breeding stock reach 47 4.92 million head, output 69 6.28 million head, calculated according to 10% mortality rate, about 7 0 million head of livestock and poultry deaths each year. Breeding pattern also from a mere cage-free into free-range, mill type breeding, small scale and large enterprise cultivation, the situation of various cultivation modes coexist. Simple embedded way already can not meet the needs of the dead livestock and poultry processing.
Three kinds of feeding mode, the range of livestock and poultry accounted for the proportion of small, even death, small, easy to handle, through a simple and easy way of deep buried and burned can dispose of them. Poultry in dongying, shandong province kenli county as an example, the county living poultry breeding 900000, less than 10000 free-range poultry, accounted for less than 1%. The proportion of free-range pigs, cattle, sheep and less than 3%. Little impact on the amount of livestock and poultry deaths free-range manner. The number of large enterprise culture occupies certain proportion in the total livestock, but their management ability is stronger, practitioners of technical level is higher, low mortality, livestock and poultry deaths will not too much, and they have a certain economic strength, have the ability to purchase disposal facilities, and death of livestock and poultry disposal basic is not a problem.
2. Mill type breeding or small scale farming
(1) they are poor, the low level of technology, extensive management, is the main source of dead livestock and poultry. In pig farms, for example, their breeding scale in 100 ~ 1 000 or so, more simple and easy, piggery couples breeding or hire migrant workers as the main personnel, lack of technical personnel, management extensive, pig disease easily. Pig breeding base in the area of jiaxing in zhejiang province is the pattern, once the disease, widespread dissemination, will produce a lot of dead livestock and poultry in a short time. Simple and easy way of deep treatment of animal death has been unable to bear a lot of requirements, the farmers have no power to purchase the new disposal facilities. The way they handle dead livestock and poultry are discarded or sold, is both simple and energy saving. This is one of the characteristics of them.
(2) the onset of livestock and poultry farms in cycles, each winter and spring summer autumn winter transfer or peak after the rain is the death of livestock and poultry. On schedule, the number of dead livestock and poultry presents the situation of high and low, it is difficult to use the new disposal facilities to carry out the continuous operation, often cause equipment idle and waste.
(3) the mill type, small scale distributed geographically dispersed farms, and death of livestock and poultry collection will produce a lot of cost, this will undoubtedly create obstacles to disposal.
